White-Rabbit -> Users of White Rabbit Technology
Committed
-
CERN
- General Machine Timing system upgrade in the Antiproton Decelerator and the ELENA ring (Jean-Claude Bau, January 2013)
- BTrain upgrade: a system to distribute the value of the bending
magnetic field in synchrotrons in real-time
- Magnetic field measurement and distribution of the data in
real-time (D. Oberson,
TE-MSC,
January 2013)
- Successful validation of B-field distribution via White Rabbit (March 2014)
- Electrical Power Converter system (J-L. Gomez Costa,
TE-EPC,
June 2013. Tested succesfully May 2014)
- POPS: Power converter for PS Ring Main Dipole
- Receive the measurement Bfield from Btrain: POPS Converter receives a Field Reference and it will use the measured Bfield as a correction on the Converter regulation loop.
- Send PS Ring Main Dipole current (Im) to Btrain and PFW devices: We take advantage of the White-Rabbit infrastructure to distribute this signal so no extra cabling is needed. This transmission is done @ 1KHz.
- PFW: Phase Loop Windings Converters for PS Ring Main
Dipoles
- Receive the measurement Bdot from Btrain and PS Ring Main Dipole Current (Im) from POPS:PFW Converters uses those signals to compensate for the effect of the Main Dipole current on the PFW windings.
- POPS: Power converter for PS Ring Main Dipole
- Radio-Frequency Group, Feedbacks and beam control (M.Sundal,
BE-RF-FB,
June 2013)
- Module in the PS that will receive information about the B-train over White Rabbit and calculate the RF frequency. Part of the upgrade of the RF program in the PS. Prototyping with SPEC and WR Starting Kit. Final system will use the SVEC.
- Magnetic field measurement and distribution of the data in
real-time (D. Oberson,
TE-MSC,
January 2013)
- CNGS Timing for neutrino measurements (May 2012)
- We are running now 9 SPECs for our gamma-ray array prototype. (November 2013)
- Performance results of the first White Rabbit installation for CNGS time transfer (pdf)
- CERN to Gran Sasso Time Transfer
-
Arkus, Japan (Japanese only)
- Fixed latency trigger distribution system (April 2014, F.de Guzman)
- " Cherenkov Telescope Array":http://www.cta-observatory.org/
-
DESY
-
HiSCORE-EA Gamma-Ray and Cosmic-Ray
experiment at
the Tunka-133 Cherenkov EAS-Array (2012/13). (R. Wischnewski,
Feb 2012)
- Array Time Synchronization - First Tests with WhiteRabbit
- First Results from the HiSCORE/Siberia WR-setup; plans for CTA slideshow, Martin Brückner (Nov.2011)
-
A White Rabbit setup for sub-nsec synchronization,
timestamping and time calibration in large scale
astroparticle physics
experiments
(July 2013)
- We conclude, that this White Rabbit system is ready to be applied under field conditions in large-scale astroparticle physics experiments - for time synchronization with nanosecond precision between individual detectors, distributed over km-scale.
-
Results from the WhiteRabbit sub-nsec time synchronization
setup at
HiSCORE-Tunka
(July 2013)
- _We mention that the White architecture guarantees that
the clocks in each WR-node is synchronized with full
precision
at any time. This is an essential difference compared to most proprietary time-synchronization solutions in experiments,
based on corrections applied offline (or with significant delay)._
- _We mention that the White architecture guarantees that
the clocks in each WR-node is synchronized with full
precision
-
Status of the HiSCORE
experiment
(July 2013)
- ...we trigger and read out ... with waveform sampling at 1 GHz, and time-synchronization at sub-ns level with a White-Rabbit (WR) based system (time stamping and triggering). Waveform sampling and time-stamping proved to be very stable. The ns-trigger timestamps, obtained from the timing system allow clear Cerenkov air-shower detection.
-
HiSCORE-EA Gamma-Ray and Cosmic-Ray
experiment at
the Tunka-133 Cherenkov EAS-Array (2012/13). (R. Wischnewski,
Feb 2012)
-
ESS Bilbao
- After an extensive study, White Rabbit has been chosen as the most promising option for the synchronization network at ESS Bilbao, a light ion linear accelerator. Therefore, first SPEC to SPEC tests have been performed. Now, with a White Rabbit switch a new set up will be tested to provide synchronization signals for ESS Bilbao's hydrogen positive ion source (ISHP) in the near future. For 2013 ESS Bilbao is planning to test PXI SPECs (SPEXI) which is the most suitable platform for the integration of White Rabbit into ESS Bilbao's general control system. (Oct.2012)
-
GSI Helmholtzzentrum für Schwerionenforschung
GmbH
-
General Machine Timing System at
FAIR
- Requires a few thousand receiver nodes
- Timing System Documents (papers, technical documents)
-
General Machine Timing System at
FAIR
-
KM3NET
- European deep-sea research infrastructure, hosting a neutrino telescope
- Central Logic Boards that go in the sea will host optical modules with WR. Inside the Shore-Station will be a modified WR switch where the data in one direction is always broadcast.
-
CLB/DAQ
Meetings
- KM3NeT CLBv2 presentation. (Dec.2013)
- [Athens and 7S: status update (on-shore items) / KM3Net
Project
- 7Solutions](http://indico.cern.ch/getFile.py/access?contribId=6&resId=1&materialId=slides&confId=283476) (Dec.2013)
- LHAASO (Tsinghua University,
China)
- Timing system of LHAASO (Large High Altitude Air Shower Observation) project Deploying 10,000 detectors over 1 square km at Tibet.
- The LHAASO WR timing distribution plan consists of 4 layers of
WR switches (583 in total) covering 7344 nodes of KM2A and WCDA
detectors. It will provide both a timing link and synchronous
data acquisition network to every detector front-end for a
trigger-less scheme. Four subsystems should be separated via
VLAN, and the redundancy configurations similar to
CERN should be applied.
For 2013 it is planned to deploy a small portion of array (40-50 nodes) in Tibet using cute-wr . (Jan.2013) - Design of Compact Universal Timing Endpoint Based on White Rabbit Open Hardware FMC card.
- WR@THU homepage (Chinese only)
- Presentations
- A Packet-based Precise Timing and Synchronous DAQ Network for LHAASO Project at 13th Vienna Conference on Instrumentation - VCI2013, Slides
- Distributed Timing System & Applications - White Rabbit in Tsinghua (Dec.2012)
- Sub-nanosecond Timing System Design and Development for LHAASO Project Slides, Article: ICALEPCS 2011 conference
- A Future Project at Tibet: The Large High Altitude Air Shower Observatory -LHAASO (general article about LHAASO)
-
MIKES (Centre for metrology and
accreditation, Finland) (April 2013)
- White Rabbit at MIKES ohr wiki page
- Evaluating WR for comparison and synchronization of geographically distant atomic clocks
- 1000 km (thousand kilometer) link up and running! (12/8/2013)
- Vrije Universiteit Amsterdam, dept of Physics and Astronomics
- SuperGPS through optical networks
- Workshop on Optical Networks for Accurate Time and Frequency Transfer
- Partners
- Dutch Metrology Institute (VSL Delft ) - Slides of plans. 5 km link working (14/8/2013)
Considering/evaluating
-
Allied Partners
- Evaluating deterministic ethernet solutions for critical infrastructure networks and applications (July 2012)
- China Spallation Neutron Source Institute of High Energy Physics
Chinese Academy of Sciences, Beijing (Oct 2012)
- Target and instrument control
- Cosylab WR timing system test
- ESRF
- Upgrade program of it's storage ring. First analysis of several existing systems is done and arrived to the conclusion that, at the lights of the architecture and features of the product, it is worth to consider White Rabbit as the most attractive candidate. (Chaize, Feb 2014)
- ITER timing system (F. Di Maio, Feb 2012)
- Michigan State University
-
National Synchrotron Radiation
Laboratory, University of Science and
Technology of China (Oct 2012)
- Upgrade of the timing and control systems of accelerators. Will build demo to assess the feasibility.
-
NICA, accelerator of JINR at
Dubna (30/8/11)
- Deliver control information to different parts of accelerator over the Ethernet synchronously with a subnanosecond accuracy.
- Evalutating WR cores: Y.Kozhevnikov and PhD student A.Mukhamatnabeev.
Publicly funded projects
- EUREKA Project > 7634 RunRabbit
Thinking
- ESS Lund
- EISCAT
-
Hartnell College -
Physics
- Provide time stamp information for triggers from cosmic ray coincidence events using White Rabbit.
- SuperB
- LNLS (Brazilian Synchrotron Light Laboratory) is seriously thinking on using WR for the fast orbit feedback and for the timing system of Sirius.
-
TOTEM
experiment
at CERN
- Accurate timng for the Roman Pot detector (June 2013, W.Snoeys)
Quotes
It is great work that you all are doing with WhiteRabbit, very valuable also outside CERN. (centre for metrology, 25/7/13)
Experience is excellent (!!). (DESY, 28/10/13)
The big, active and very communicative WRcommunity has made the White Rabbit system a well debugged and calibrated system. In particular, for high demands on longterm precision and stability, the extensive usage and debugging of the WR-key components make it very reliable. (ICRC2013 paper 1146)
We acknowledge very helpful discussions, technical advices and support from the White Rabbit community (in particular the CERN based team and A. Rubini) during all phases of this project. The technical support from both SevenSolutions and Creotech [companies- ED] was very helpful. (ICRC2013 paper 1146)
We note the excellent system reliability: not a single component of four complete stations showed a failure over 6 months of Siberian winter performance (at operation/storage temperatures of 0...+30C / -45...+10C, respectively). (ICRC2013 paper 1158)
My knowledge about all of WR Technology and its subprojects is expanding now. I'm very glad I had the opportunity to work in such project. :), and also to have kind friends here for continiously sharing their knowledge. (Arkus/Japan, 30/5/14)
30 May 2014